EP2048450B1 - Air conditioning control device and air conditioning control method - Google Patents

Air conditioning control device and air conditioning control method Download PDF

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Publication number
EP2048450B1
EP2048450B1 EP07791232.7A EP07791232A EP2048450B1 EP 2048450 B1 EP2048450 B1 EP 2048450B1 EP 07791232 A EP07791232 A EP 07791232A EP 2048450 B1 EP2048450 B1 EP 2048450B1
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EP
European Patent Office
Prior art keywords
unit
air
air conditioning
adjacent
operating
Prior art date
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Application number
EP07791232.7A
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German (de)
English (en)
French (fr)
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EP2048450A4 (en
EP2048450A1 (en
Inventor
Atsushi Nishino
Satoshi Hashimoto
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Daikin Industries Ltd
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Daikin Industries Ltd
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Publication of EP2048450A4 publication Critical patent/EP2048450A4/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/38—Personalised air distribution

Definitions

  • the present invention relates to an air conditioning control device and an air conditioning control method that collectively control the operation of an indoor unit group constituted by a plurality of indoor units of an air conditioner that are installed in a single space.
  • a plurality of indoor units may be installed in such a space.
  • the operation of each indoor unit can be individually set. Therefore, when a plurality of indoor units are installed in a single large open space and if air conditioning is needed only in the space of a portion of such a single large open space, among all the indoor units installed in the single large open space, only the indoor unit arranged for the space of the portion is caused to perform an air conditioning operation.
  • JP-A Publication No. H6-323594 discloses an air curtain generating device that generates an air curtain for separating the space to be targeted by an air conditioning operation from other spaces in order to improve the air conditioning operational efficiency in the space to be targeted by the air conditioning operation.
  • JP 2005 134021 A discloses an air conditioning control device according to the preamble of claim 1 and an air conditioning control method according to the preamble of claim 14.
  • An object of the present invention is to improve the air conditioning operational efficiency in the space of a portion of a single space having an indoor unit group installed when air conditioning is needed only in the space of the portion, and to facilitate energy conservation.
  • an indoor unit capable of air conditioning a space required to be air conditioned (air conditioning target space) within a single space where the plurality of indoor units are installed is caused to perform the air conditioning operation. Further, this air conditioning control device causes an indoor unit (adjacent unit) adjacent to the operating unit to perform the air flow generating operation. Note that the adjacent unit may be located either inside or outside the air conditioning target space. The adjacent unit performs the air flow generating operation and thereby generates an air flow that inhibits conditioned air from diffusing from the air conditioning target space. Accordingly, with this air conditioning control device, when air conditioning is needed only in the space of a portion of a single space having the indoor unit group installed, it is possible to improve the air conditioning operational efficiency in the space of the portion and facilitate energy conservation.
  • the air flow generating operation is a thermo-off operation.
  • This air conditioning control device causes the adjacent unit to perform the thermo-off operation as the air flow generating operation, i.e., an operation in an air blowing mode where only blowing of air is performed. Accordingly, with this air conditioning control device, it is possible to generate an air flow that inhibits conditioned air from diffusing from the air conditioning target space.
  • the air flow generating operation may be a mild cooling operation or a mild heating operation.
  • This air conditioning control device causes the adjacent unit to perform the mild cooling operation or the mild heating operation as the air flow generating operation. Accordingly, with this air conditioning control device, it is possible to aid the cooling operation or the heating operation of the operating unit while inhibiting conditioned air from diffusing from the air conditioning target space, by generating an air flow of air mildly cooled or mildly heated.
  • the adjacent unit is installed in a ceiling of the space where the indoor unit group is installed and the air flow generating operation is an air blowing operation to blow air downward or obliquely downward.
  • This air conditioning control device causes the adjacent unit to blow air downward or obliquely downward as the air flow generating operation. Accordingly, with this air conditioning control device, an air curtain is formed at a boundary between the air conditioning target space and the space outside thereof, and it is possible to more effectively inhibit conditioned air from diffusing from the air conditioning target space.
  • the air conditioning control device may further comprise an operation command input unit configured to allow a user to input an operation command to the indoor units included in the indoor unit group, wherein the operating-unit specifying unit is configured to specify the operating unit based on the operation command input via the operation command input unit.
  • the operating unit is specified based on the operation command input by the user via the operation command input unit.
  • the operation command input unit may be, for example, an individual remote controller for controlling each indoor unit or a central remote controller for controlling a plurality of indoor units. Accordingly, with this air conditioning control device, the operating unit can manually be specified by the user.
  • the air conditioning control device may further comprise a living body location identifying unit configured to identify the location of a living body present in the space where the indoor unit group is installed, wherein the operating-unit specifying unit is configured to specify the operating unit based on the location of the living body identified by the living body location identifying unit.
  • the operating unit is specified based on the location of a living body present in the space where the indoor unit group is installed, which is identified by the living body location identifying unit. Accordingly, with this air conditioning control device, it is possible to automatically specify the operating unit.
  • the adjacent unit includes a plurality of air blow-out direction adjusting means configured to adjust the direction of air blown out from the adjacent unit and the air flow generating operation is an operation to generate the above described air flow by independently controlling the plurality of air blow-out direction adjusting means such that air is blown out from the adjacent unit only in the direction toward the air conditioning target space.
  • the adjacent unit controlled by this air conditioning control device is equipped with the plurality of air blow-out direction adjusting means capable of being operated in a mutually independent manner.
  • the air blow-out direction adjusting means are, for example, flaps that open and close a blow-out port formed in a casing of the indoor unit.
  • This air conditioning control device causes the adjacent unit to blow out air only in the direction from the adjacent unit toward the air conditioning target space by separately controlling the plurality of air blow-out direction adjusting means, and inhibits the adjacent unit from blowing air in directions not toward the air conditioning target space. Accordingly, with this air conditioning control device, it is possible to further facilitate energy conservation by inhibiting the adjacent unit from unnecessarily blowing air.
  • the adjacent-unit specifying unit is configured to specify only an indoor unit that is not the operating unit as the adjacent unit, among all the indoor units adjacent to at least one of the operating units among the plurality of indoor units specified as the operating units by the operating-unit and the operating-unit control unit is configured to cause, among the plurality of indoor units specified as the operating units by the operating-unit specifying unit, an indoor unit adjacent to the adjacent unit to perform the air conditioning operation at reduced performance level compared to the other indoor units not adjacent to the adjacent unit.
  • Air in a space that is inside the air conditioning target space and that is near the boundary between the air conditioning target space and the space outside thereof tends to easily flow out of the air conditioning target space. Consequently, with this air conditioning control device, among all the indoor units arranged for the air conditioning target space, the indoor unit arranged for the space near the boundary is caused to perform an air conditioning operation at reduced performance level compared to the indoor unit arranged for the space that is more inward than the space near the boundary. Accordingly, with this air conditioning control device, it is possible to improve the air conditioning operational efficiency in the air conditioning target space.
  • the air conditioning control device may further comprise a memory unit configured to arrangement information regarding the arrangement of the indoor units included in the indoor unit group in the space where the indoor unit group is installed, wherein the adjacent-unit specifying unit is configured to specify the adjacent unit based on the arrangement information stored in the memory unit.
  • This air conditioning control device stores the arrangement information of the indoor units constituting the indoor unit group. Accordingly, with this air conditioning control device, the adjacent unit among the indoor units can be specified.
  • the operating unit and the adjacent unit are present in the air conditioning target space.
  • This air conditioning control device causes the adjacent unit that is an indoor unit in the air conditioning target space to perform the air flow generating operation. In other words, it is possible to further facilitate energy conservation by not allowing the adjacent unit to perform a normal air conditioning operation.
  • the operating-unit control unit is configured to cause the operating unit to perform a cooling operation and the adjacent-unit control unit is configured to control the direction of air from the adjacent unit so as to be directed toward a living body in the vicinity of the adjacent unit.
  • this air conditioning control device causes the adjacent unit to blow out air in the direction toward the living body in the vicinity of the adjacent unit. Therefore, even if the temperature in the space in the vicinity of the adjacent unit is raised as a result of the adjacent unit not performing the normal air conditioning operation, the sensible temperature as felt by the living body in the vicinity of the adjacent unit can be lowered.
  • the adjacent unit is installed in a ceiling of the space
  • the operating-unit control unit is configured to cause the operating unit to perform the cooling operation
  • the operating-unit control unit is configured to control the direction of air from the operating unit so as to be directed toward the adjacent unit.
  • This air conditioning control device causes the operating unit to blow out cold air toward the adjacent unit arranged in the ceiling. Accordingly, in the air conditioning target space, heavy cold air is accumulated near the ceiling and the cold air gradually descends to near the floor. Thus, it is possible to uniformly cool the air conditioning target space.
  • the adjacent unit includes a suction port for sucking air and a plurality of air blow-out direction adjusting means configured to adjust the direction of air blown out and the air flow generating operation is an operation to generate the air flow only from the air blow-out direction adjusting means farther from the operating unit than the suction port, among the plurality of air blow-out direction adjusting means.
  • the adjacent unit controlled by this air conditioning control device is equipped with the plurality of air blow-out direction adjusting means capable of being operated in a mutually independent manner.
  • the air blow-out direction adjusting means are, for example, flaps that open and close a blow-out port formed in a casing of the indoor unit.
  • This air conditioning control device generates the air flow only from the air blow-out direction adjusting means located at a position far from the operating unit compared to the suction port, and inhibits air from being blown out from the air blow-out direction adjusting means located at a position close to the operating unit compared to the suction port, among the plurality of blow-out direction adjusting means. Accordingly, with this air conditioning control device, air conditioned by the operating unit can easily reach the space in the vicinity of the adjacent unit.
  • an indoor unit capable of air conditioning a space required to be air conditioned (air conditioning target space) within a single space where a plurality of indoor units are installed is caused to perform the air conditioning operation.
  • an indoor unit adjacent to the operating unit is caused to perform the air flow generating operation.
  • the adjacent unit may be located either inside or outside the air conditioning target space.
  • the adjacent unit performs the air flow generating operation and thereby generates an air flow that inhibits conditioned air from diffusing from the air conditioning target space. Accordingly, with this air conditioning control method, when air conditioning is needed only in the space of a portion of a single space having the indoor unit group installed, it is possible to improve the air conditioning operational efficiency in the space of the portion and facilitate energy conservation.
  • the air conditioning control device when air conditioning is needed only in the space of a portion of a single space having the indoor unit group installed, it is possible to improve the air conditioning operational efficiency in the space of the portion and facilitate energy conservation.
  • the air conditioning control device With the air conditioning control device according to the second aspect of the present invention, it is possible to generate an air flow that inhibits conditioned air from diffusing from the air conditioning target space.
  • the air conditioning control device With the air conditioning control device according to the third aspect of the present invention, it is possible to aid the cooling operation or the heating operation of the operating unit while inhibiting conditioned air from diffusing from the air conditioning target space, by generating an air flow of air mildly cooled or mildly heated.
  • an air curtain is formed at a boundary between the air conditioning target space and the space outside thereof, and it is possible to more effectively inhibit conditioned air from diffusing from the air conditioning target space.
  • the operating unit can manually be specified by the user.
  • the operating unit can be automatically specified.
  • the air conditioning control device With the air conditioning control device according to the seventh aspect of the present invention, it is possible to further facilitate energy conservation by inhibiting the adjacent unit from unnecessarily blowing air.
  • the adjacent unit among the indoor units can be specified.
  • the air conditioning control device According to the eleventh aspect of the present invention, even if the temperature in the space in the vicinity of the adjacent unit is raised as a result of the adjacent unit not performing the normal air conditioning operation, the sensible temperature as felt by the living body in the vicinity of the adjacent unit can be lowered.
  • air conditioned by the operating unit can easily reach the space in the vicinity of the adjacent unit.
  • An air conditioning control device 1 according to a first embodiment of the present invention is described below.
  • FIG. 1 shows the setting of an indoor space A where indoor units 30a, 30b, ..., and 30y of an air conditioner controlled by the air conditioning control device 1 are installed.
  • the indoor space A is a single large open space such as an office, restaurant, and the like.
  • cell spaces Sa, Sb, ..., and Sy partitioned by broken lines are spaces that are virtually divided, and correspond to respectively the indoor units 30a, 30b, ..., and 30y.
  • the cell spaces Sa, Sb, ..., and Sy are spaces which is targeted by an air conditioning operation of the indoor units 30a, 30b, ..., and 30y respectively.
  • the indoor units 30a, 30b, ..., and 30y are installed inside of the cell spaces Sa, Sb, ..., and Sy respectively.
  • FIG. 2 is a block diagram showing the configuration of the air conditioning control device 1.
  • the air conditioning control device 1 has a control unit 10 and a memory unit 20.
  • the air conditioning control device 1 is connected to a control unit 35 of each of the indoor units 30a, 30b, ..., and 30y via a communication network 3, and is capable of controlling the operation of each portion of each of the indoor units 30a, 30b, ..., and 30y via the control unit 35.
  • This communication network 3 may be a network dedicated to air conditioning to which only the air conditioning control device 1 and equipment such as the indoor units 30a, 30b, ..., and 30y are connected, or may be a general network compliant with standards such as Ethernet (registered trademark).
  • control unit 10 By reading out and executing a control program stored in the memory unit 20, the control unit 10 operates as an operating-unit specifying unit 11, an adjacent-unit specifying unit 12, an operating-unit control unit 13, an adjacent-unit control unit 14 and the like. Details of the operation of each of these units 11 to 14 are described later.
  • the memory unit 20 stores an arrangement information management table 21 that organizes information regarding the arrangement of the indoor units 30a, 30b, ..., and 30y in the indoor space A.
  • the arrangement information management table 21 manages information as one line data that associates each one of the indoor units 30a, 30b, ..., and 30y with a maximum of four indoor units 30a, 30b, ..., and 30y adjacent to the one of the indoor units 30a, 30b, ..., and 30y.
  • the indoor unit 30a is mainly described below; however, the same description applies to other indoor units 30b, ..., 30y.
  • the indoor unit 30a is connected to an outdoor unit 40 via a refrigerant communication pipe 4.
  • the air conditioner controlled by the air conditioning control device 1 is a multi system air conditioner and the indoor units 30a, 30b, ..., and 30y are connected in parallel; however, the illustrations thereof are omitted in Figure 4 for the sake of simplicity.
  • An indoor fan 36 rotationally driven by a fan motor is provided in a casing of the indoor unit 30a, and air in the cell space Sa is sucked into the casing of the indoor unit 30a via a suction port 33 (see Figure 5 ) as a result of rotation of the indoor fan 36.
  • the air sucked into the casing of the indoor unit 30a exchanges heat with the refrigerant flowing through an indoor side heat exchanger 37 disposed in the casing of the indoor unit 30a. Consequently, the air is cooled during operation in a cooling mode (when a four way valve 44 of the outdoor unit 40 is in a state shown by solid lines) and is heated during operation in a heating mode (when the four way valve 44 of the outdoor unit 40 is in a state shown by broken lines).
  • the refrigerant that has exchanged heat in the indoor side heat exchanger 37 is sent to the outdoor unit 40 via the refrigerant communication pipe 4.
  • an outdoor side heat exchanger 41 In a casing of the outdoor unit 40, there are provided an outdoor side heat exchanger 41, an outdoor fan 42, a compressor 43, a four way valve 44, and an expansion valve 45.
  • the outdoor fan 42 being rotationally driven by the fan motor, outdoor air is sucked into the casing of the outdoor unit 40, and heat exchange is facilitated between the air sucked into and the refrigerant flowing through the outdoor side heat exchanger 41.
  • the refrigerant flowing through the outdoor side heat exchanger 41 radiates heat during operation in the cooling mode (when the four way valve 44 of the outdoor unit 40 is in a state shown by solid lines) and absorbs heat during operation in the heating mode (when the four way valve 44 of the outdoor unit 40 is in a state shown by broken lines).
  • FIG. 5 is an external view of the indoor unit 30a.
  • the suction port 33 for sucking air in the cell space Sa and four blow-out ports 32a to 32d for blowing out air into the cell space Sa are formed in a bottom panel 34 of the casing of the indoor unit 30a.
  • the bottom panel 34 is a decorative panel facing the indoor space A, and has a generally quadrangular shape.
  • the four blow-out ports 32a to 32d are formed one each along the four sides of the generally quadrangular bottom panel 34, and surround the suction port 33 formed in a generally quadrangular shape in the center of the bottom panel 34.
  • the bottom panel 34 is provided with flaps 31a to 31d that open and close blow-out ports 32a to 32d, respectively.
  • the flow direction of air blown out from the indoor unit 30a is determined by the inclination of the flaps 31a to 31d.
  • the indoor unit 30a has the control unit 35.
  • the control unit 35 is connected to a motor that opens and closes the flaps 31a to 31d, and can control the opening and closing of the flaps 31a to 31d.
  • the control unit 35 is connected to the fan motor that rotationally drives the indoor fan 36, and can control the rotation speed of the indoor fan 36.
  • the control unit 35 can communicate with a remote controller 40a in a wire or wireless manner.
  • the user can input operation commands such as on/off of the operation, operation mode, set temperature, air volume, direction of air, and the like to the indoor unit 30a via the remote controller 40a.
  • Figure 2 illustrates the remote controllers 40a, 40b, ..., and 40y being provided respectively correspondingly to the indoor units 30a, 30b, ..., and 30y, any number of remote controllers may be provided in other embodiments.
  • FIG. 6 is a flowchart showing the flow of the process in which the air conditioning control device 1 controls the indoor units 30a, 30b, ..., and 30y of the air conditioner. This process is started when the user started or stopped any type of operation of the indoor units 30a, 30b, ..., and 30y via the remote controllers 40a, 40b, ..., and 40y (note that an operation in an air blowing mode where only blowing of air is performed is excluded, and the same applies throughout to the description of the first embodiment unless otherwise explicitly stated).
  • the operation commands input into the remote controllers 40a, 40b, ..., and 40y by the user are sent to the control unit 10 of the air conditioning control device 1 via the control unit 35 of the indoor units 30a, 30b, ..., and 30y, respectively, and the communication network 3.
  • the process shown in Figure 6 is described below by taking, as a specific example, the case in which the user requires air conditioning only in a space M (see Figure 1 ) constituted by the cell spaces Sf to Sh, Sk to Sm, and Sp to Sr within the indoor space A.
  • the user selects the operation of the indoor units 30f to 30h, 30k to 30m, and 30p to 30r installed in the space M, among all the indoor units 30a, 30b, ..., and 30y installed in the indoor space A, via the remote controllers 40a, 40b, ..., and 40y.
  • the space M is an air conditioning target space where the user requires air conditioning.
  • the space M is an occupied space where the user is present, and the cell spaces Sa to Se, Si, Sj, Sn, So, Ss, St, and Su to Sy that are not included in the space M are vacant spaces where the user is not present.
  • step S1 the control unit 10 operates as the operating-unit specifying unit 11.
  • the operating-unit specifying unit 11 specifies, among all the indoor units 30a, 30b, ..., and 30y, the indoor units 30f to 30h, 30k to 30m, and 30p to 30r being currently selected by the user to operate (hereinafter referred to as "operating units").
  • step S2 the control unit 10 determines whether or not the operating units 30f to 30h, 30k to 30m, and 30p to 30r specified in step S1 are only some of all the indoor units 30a, 30b, ..., and 30y. When they are only some of all, in other words, when only some of all indoor units are currently selected by the user to operate, the process proceeds to step S3, otherwise to step S6. In case of the above described specific example, the process proceeds to step S3.
  • step S3 the control unit 10 operates as the adjacent-unit specifying unit 12.
  • the adjacent-unit specifying unit 12 specifies the indoor units 30a to 30c, 30i, 30n, 30s, and 30u to 30w (hereinafter referred to as "adjacent units") adjacent to the operating units 30f to 30h, 30k to 30m, and 30p to 30r specified in step S1.
  • the indoor units specified as the adjacent units in step S3 are the indoor units 30a to 30c, 30i, 30n, 30s, and 30u to 30w that are not the operating units 30f to 30h, 30k to 30m, and 30p to 30r, among all the indoor units 30a to 30c, 30f to 30i, 30k to 30n, 30p to 30s, and 30u to 30w adjacent to any of the operating units 30f to 30h, 30k to 30m, and 30p to 30r.
  • the adjacent-unit specifying unit 12 refers to the arrangement information management table 21 stored in the memory unit 20 and specifies all the indoor units 30a to 30c, 30f to 30i, 30k to 30n, 30p to 30s, and 30u to 30w adjacent to any of the operating units 30f to 30h, 30k to 30m, and 30p to 30r. Then, the adjacent-unit specifying unit 12 excludes the operating units 30f to 30h, 30k to 30m, and 30p to 30r from all the specified indoor units 30a to 30c, 30f to 30i, 30k to 30n, 30p to 30s, and 30u to 30w so as to specify the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w.
  • the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w are present in an adjacent space (cell spaces Sa to Sc, Si, Sn, Ss, and Su to Sw) adjacent to the space M.
  • the adjacent space (cell spaces Sa to Sc, Si, Sn, Ss, and Su to Sw) is included in the cell spaces Sa to Se, Si, Sj, Sn, So, Ss, St, and Su to Sy that are not the air conditioning target spaces.
  • step S3 the process proceeds to step S4 and step S5.
  • Step S4 and step S5 are concurrently executed.
  • step S4 the control unit 10 operates as the operating-unit control unit 13.
  • the operating-unit control unit 13 divides the space M where the user requires air conditioning into two blocks.
  • the two blocks are: a boundary side space M1 that defines the boundary between the space M and the space outside thereof (cell spaces Sa to Se, Si, Sj, Sn, So, Ss, St, and Su to Sy); and an inner space M2 surrounded by the boundary side space M1.
  • the operating-unit control unit 13 controls the indoor units 30k and 301 in the inner space M2 according to settings of the operation mode, set temperature, air volume, direction of air, and the like that were input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • the operating-unit control unit 13 controls the indoor units 30f to 30h, 30m, 30p to 30r in the boundary side space M1 such that the settings input by the user via the remote controllers 40a, 40b, ..., and 40y are performed at a lower performance level. For example, control is performed such that the set temperature is raised by a predetermined amount in the case of the cooling operation mode and is lowered by a predetermined amount in the case of the heating mode, and the air volume is decreased by a predetermine level.
  • step S4 air in the boundary side space M1 which tends to easily diffuse into a space where the user does not require air conditioning (cell spaces 30a to 30e, 30i, 30j, 30n, 30o, and 30s to 30y) is conditioned at a lower performance level, and thereby it is possible to achieve energy conservation.
  • step S5 the control unit 10 operates as the adjacent-unit control unit 14.
  • the adjacent-unit control unit 14 causes the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w specified in step S3 to perform a thermo-off operation, i.e., an operation in the air blowing mode where only blowing of air is performed.
  • a thermo-off operation i.e., an operation in the air blowing mode where only blowing of air is performed.
  • the direction of air from the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w is downward or obliquely downward in the direction toward the outside of the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w, or the direction of air is set to a swing mode where the air swings between these directions.
  • a specific angle of the "obliquely downward" direction as referred to herein may be predetermined based on the distances among the indoor units 30a, 30b, ..., and 30y, or may be automatically calculated by referring to the memory unit 20 in which information regarding these distances are stored in advance.
  • the direction of air from the adjacent units may be determined according to the setting of the operating units 30f to 30h, 30k to 30m, and 30p to 30r. For example, if the setting of the operating units 30f to 30h, 30k to 30m, and 30p to 30r is "downward", the direction of air from the adjacent units is adjusted to be more downward.
  • the air volume of the adjacent units may be uniformly set to, for example, "strong” or may be determined according to the setting of the operating units 30f to 30h, 30k to 30m, and 30p to 30r. For example, if the setting of the operating units 30f to 30h, 30k to 30m, and 30p to 30r is "strong,” the air volume of the adjacent units may be set to "strong", and if the setting of the operating units 30f to 30h, 30k to 30m, and 30p to 30r is "weak,” the air volume of the adjacent units may be set to "weak".
  • this step S5 it is possible to inhibit air conditioned by the operating units 30f to 30h, 30k to 30m, and 30p to 30r in the space M where the user requires air conditioning from diffusing from the space M where the user requires air conditioning.
  • the indoor units 30d, 30e, 30j, 30o, 30t, 30x, and 30y that are neither the operating units 30f to 30h, 30k to 30m, and 30p to 30r specified by the operating-unit specifying unit 11 nor the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w specified by the adjacent-unit specifying unit 12 are held in the OFF state unless the operation in the air blowing mode is selected by the user.
  • Figure 7 is a view showing the setting of the indoor space A during execution of step S4 and step S5 in the above described specific example.
  • each of the indoor units 30a, 30b, ..., and 30y in the indoor space A will be controlled according to the settings of the operation mode, set temperature, air volume, direction of air, and the like that were input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • the indoor units 30a to 30c, 30i, 30n, 30s, and 30u to 30w that surround those some indoor units 30f to 30h, 30k to 30m, and 30p to 30r perform the air blowing operation, and thereby the space M that should be air conditioned will be enveloped by an air curtain. Accordingly, conditioned air is inhibited from diffusing from the space M that should be air conditioned, and thereby it is possible to achieve energy conservation.
  • step S4 in Figure 6 the space M where the user requires air conditioning is divided into two blocks (the boundary side space M1 and the inner space M2), and a different type of control is performed for each block; however, such control may be omitted.
  • the entire space M may be controlled according to the settings that were input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w are controlled to perform the thermo-off operation; however, they may be controlled to perform a mild cooling operation or a mild heating operation.
  • the mild cooling operation or the mild heating operation of the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w will aid the cooling operation or the heating operation in the space M where the user requires air conditioning.
  • a location identifying system capable of automatically detecting the location of a living body such as a person or an animal present in the indoor space A may be introduced.
  • a location identifying system infrared sensors may be installed at several appropriate locations in the indoor space A.
  • a living body in the indoor space A may carry a transmitter, and receivers capable of detecting a signal from the transmitter may be installed in several appropriate locations in the indoor space A.
  • a device such as an IC tag may be used as a transmitter and receivers are introduced as the location identifying system, the control unit 10 and the like will identify the location of the transmitter by triangulation or other methods based on a signal from the transmitter that was received by the receivers.
  • an entering/leaving management system introduced as the location identifying system into the indoor space A, or a personal computer used by an employee working in the indoor space A which allows manual input of information indicating the presence or absence of people may be used by interlocking with the air conditioning control device 1.
  • step S2 in Figure 6 information regarding the location of a living body identified by such a location identifying system is sent to the control unit 10 of the air conditioning control device 1.
  • the operating-unit specifying unit 11 specifies the operating units based on the information regarding the location of the living body identified by the location identifying system in addition to or instead of the operation commands sent from the remote controllers 40a, 40b, ..., and 40y.
  • the process in Figure 6 may be executed in the case where the information regarding the location of the living body is sent to the control unit 10 from the location identifying system in addition to or instead of the case where the operation commands input by the user are sent to the control unit 10 from the remote controllers 40a, 40b, ..., and 40y.
  • opening and closing of the flaps 31a to 31d of each of the indoor units 30a, 30b, ..., and 30y may be independently controllable for each of the flaps 31a to 31d.
  • thermo-off operation of the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w in step S5 in Figure 6 may be controlled as described below.
  • the adjacent-unit control unit 14 causes air to be blown out only from the flaps that can direct air to be blown toward the space M for which the operating units 30f to 30h, 30k to 30m, and 30p to 30r are arranged.
  • the adjacent-unit control unit 14 causes air to be blown only from the flap closer to the space M than the suction port 33 among the four flaps 31a to 31d, and inhibits air from being blown out from other flaps.
  • an arrangement information management table 22 shown in Figure 8 instead of the arrangement information management table 21, is stored in the memory unit 20.
  • the arrangement information management table 22 manages information indicating the indoor units 30a, 30b, ..., and 30y adjacent to each of the flaps 31a to 31d of each of the indoor units 30a, 30b, ..., and 30y.
  • the adjacent-unit control unit 14 can specify the flaps that can direct air to be blown toward the space M where the user requires air conditioning by referring to the arrangement information management table 22.
  • the above embodiment may be configured such that the user can select an "air curtain mode" in each of the indoor units 30a, 30b, ..., and 30y via the remote controllers 40a, 40b, ..., and 40y and the like.
  • control unit 10 of the air conditioning control device 1 executes the following process instead of the process shown in Figure 6 .
  • control unit 10 causes the indoor units 30a, 30b, ..., and 30y in which the user selected the "air curtain mode" via the remote controllers 40a, 40b, ..., and 40y to perform the thermo-off operation, the mild cooling operation, or the mild heating operation, as in step S5 in Figure 6 or the alternative embodiment (2).
  • the direction of air from the indoor units 30a, 30b, ..., and 30y in which the "air curtain mode" is selected is downward or obliquely downward in the direction toward the outside of the indoor units 30a, 30b, ..., and 30y in which the "air curtain mode" is selected, or the direction of air is set to the swing mode where the air swings between these directions.
  • a specific angle of the "obliquely downward" direction as referred to herein may be predetermined based on the distances among the indoor units 30a, 30b, ..., and 30y, or may be automatically calculated by referring to the memory unit 20 in which information regarding these distances are stored in advance.
  • the control unit 10 performs control according to the settings of the operation mode, set temperature, air volume, direction of air, and the like that were input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • each of the indoor units 30a, 30b, ..., and 30y may be controlled according to an output value of a suction temperature sensor attached near the suction port 33 of each of the indoor units 30a, 30b, ..., and 30y.
  • the control unit 35 of each of the indoor units 30a, 30b, ..., and 30y causes the indoor units 30a, 30b, ..., and 30y to perform the thermo-off operation, the mild cooling operation, or the mild heating operation, as in step S5 or the alternative embodiment (2), when it is determined based on an output value of the suction temperature sensor that cold air or warm air is flowing out from the space M that should be air conditioned.
  • the direction of air is downward or obliquely downward in the direction toward the outside of the indoor units 30a, 30b, ..., and 30y, or the direction of air is set to the swing mode where the air swings between these directions.
  • a specific angle of the "obliquely downward" direction as referred to herein may be predetermined based on the distances among the indoor units 30a, 30b, ..., and 30y, or may be automatically calculated by referring to the memory unit 20 in which information regarding these distances are stored in advance.
  • the settings of the operation mode, set temperature, air volume, direction of air, and the like of the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w may be adjusted according to an output value of the suction temperature sensor attached near the suction port 33 of each of the adjacent units 30a to 30c, 30i, 30n, 30s, and 30u to 30w.
  • the air conditioning control device 1 may be a central remote controller for the air conditioner including the indoor units 30a, 30b, ..., and 30y. Consequently, the user can input an operation command to each of the indoor units 30a, 30b, ..., and 30y via an input unit (not shown) of the air conditioning control device 1. Note that an operation command input via the input unit (not shown) of the air conditioning control device 1 is processed in the same manner as an operation command input via the remote controllers 40a, 40b, ..., and 40y.
  • An air conditioning control device 101 according to a second embodiment of the present invention is described below. Note that the constituent elements common to the second embodiment and the first embodiment are denoted by the same reference symbols. The second embodiment is described below focusing on the difference from the first embodiment.
  • Figure 9 shows the setting of an indoor space B where indoor units 130a, 130b, ..., and 130y of an air conditioner controlled by the air conditioning control device 101 are installed.
  • the indoor space B is a single large open space such as an office, restaurant, and the like.
  • cell spaces Ta, Tb, ..., and Ty partitioned by broken lines are spaces that are virtually divided, and are correspond to respectively for the indoor units 130a, 130b, ..., and 130y.
  • the cell spaces Ta, Tb, ..., and Ty include the indoor units 130a, 130b, ..., and 130y, respectively.
  • the cell spaces Ta, Tb, ..., and Ty are the target spaces to be air conditioned not only by the indoor units 130a, 130b, ..., and 130y respectively included in those cell spaces Ta, Tb, ..., and Ty but also by the indoor units 130a, 130b, ..., and 130y included in the surrounding spaces Ta, Tb, ..., and Ty.
  • the space to be targeted by the air conditioning operation of the air conditioning unit 130g is not only the cell space Tg but it also includes the cell spaces Ta to Tc, Tf, Th, and Tk to Tm surrounding the cell space Tg.
  • FIG. 10 is a block diagram showing the configuration of the air conditioning control device 101.
  • the air conditioning control device 101 has the control unit 10 and the memory unit 20.
  • the air conditioning control device 101 is connected to the control unit 35 of each of the indoor units 130a, 130b, ..., and 130y via the communication network 3, and is capable of controlling the operation of each portion of each of the indoor units 130a, 130b, ..., and 130y via the control unit 35.
  • control unit 10 By reading out and executing a control program stored in the memory unit 20, the control unit 10 operates as an operating-unit specifying unit 111, an adjacent-unit specifying unit 112, an operating-unit control unit 113, an adjacent-unit control unit 114 and the like. Details of the operation of each of these units 111 to 114 are described later.
  • the memory unit 20 stores arrangement information 121 that organizes information regarding the arrangement of the indoor units 130a, 130b, ..., and 130y in the indoor space B.
  • the arrangement information 121 is, for example, map information that mapped inside the indoor space B and has information that indicates the positional relationship of each of the indoor units 130a, 130b, ..., and 130y.
  • the indoor unit 130a has the same configuration as the indoor unit 30a according to the first embodiment.
  • the indoor units 130b, ..., 130y also have the same configuration as the indoor units 30b, ..., 30y according to the first embodiment.
  • Figure 13 is a flowchart showing the flow of the process in which the air conditioning control device 101 controls the indoor units 130a, 130b, ..., and 130y of the air conditioner. This process is started when the user started or stopped any type of operation of the indoor units 130a, 130b, ..., and 130y via the remote controllers 40a, 40b, ..., and 40y (note that the operation in the air blowing mode where only blowing of air is performed is excluded, and the same applies throughout to the description of the second embodiment unless otherwise explicitly stated).
  • the operation commands input into the remote controllers 40a, 40b, ..., and 40y by the user are sent to the control unit 10 of the air conditioning control device 101 via the control unit 35 of the indoor units 130a, 130b, ..., and 130y, respectively, and the communication network 3.
  • the process shown in Figure 13 is described below by taking, as a specific example, the case in which the user requires air conditioning only in a space N (see Figure 9 ) constituted by the cell spaces Tf to Th, Tk to Tm, and Tp to Tr within the indoor space B.
  • the user selects the operation of the indoor units 130f to 130h, 130k to 130m, and 130p to 130r installed in the space N, among all the indoor units 130a, 130b, ..., and 130y installed in the indoor space B, via the remote controllers 40a, 40b, ..., and 40y.
  • the space N is an air conditioning target space where the user requires air conditioning.
  • the space N is an occupied space where the user is present, and the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not included in the space N are vacant spaces where the user is not present.
  • step S101 based on the operation commands sent from the remote controllers 40a, 40b, ..., and 40y, the control unit 10 specifies the indoor units 130f to 130h, 130k to 130m, and 130p to 130r being currently selected by the user to operate, among all the indoor units 130a, 130b, ..., and 130y. Then, the control unit 10 refers to the arrangement information 121 stored in the memory unit 20 and specifies the space N for which the indoor units 130f to 130h, 130k to 130m, 130p to 130r that the user has selected to operate are arranged. Subsequently, the control unit 10 attempts to divide the space N where the user requires air conditioning into two blocks.
  • the two blocks are: a boundary side space N1 that defines the boundary between the space N and the space outside thereof (cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty); and an inner space N2 surrounded by the boundary side space N1.
  • step S102 the control unit 10 operates as the operating-unit specifying unit 111.
  • the operating-unit specifying unit 111 refers to the arrangement information 121 stored in the memory unit 20 and specifies the indoor units 130k and 1301 (hereinafter referred to as the operating units) in the inner space N2 derived in step S101.
  • the control unit 10 operates as the adjacent-unit specifying unit 112.
  • the adjacent-unit specifying unit 112 refers to the arrangement information 121 stored in the memory unit 20 and specifies the indoor units 130f to 130h, 130m, and 130p to 130r (hereinafter referred to as the adjacent units) in the boundary side space N1 derived in step S101. Note that, because the boundary side space N1 and the inner space N2 are adjacently arranged, the adjacent units 130f to 130h, 130m, and 130p to 130r and the operating units 130k, and 1301 are also adjacently arranged.
  • step S103 the process proceeds to step S104 and step S105.
  • Step S104 and step S105 are concurrently executed.
  • step S104 the control unit 10 operates as the operating-unit control unit 113.
  • the operating-unit control unit 113 controls the operating units 130k and 1301 according to the settings of the operation mode, set temperature, air volume, direction of air, and the like that are input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • step S105 the control unit 10 operates as the adjacent-unit control unit 114.
  • the adjacent-unit control unit 114 causes the adjacent units 130f to 130h, 130m, and 130p to 130r specified in step S103 to perform the thermo-off operation, i.e., an operation in the air blowing mode where only blowing of air is performed.
  • the direction of air from the adjacent units 130f to 130h, 130m, and 130p to 130r is downward or obliquely downward in the direction toward the outside, or the direction of air is set to a swing mode where the air swings between these directions.
  • a specific angle of the "obliquely downward" direction as referred to herein may be predetermined based on the distances among the indoor units 130a, 130b, ..., and 130y, or may be automatically calculated by referring to the memory unit 20 in which information regarding these distances are stored in advance.
  • the direction of air from the adjacent units may be determined according to the setting of the operating units 130k and 1301. For example, if the setting of the operating units 130k and 1301 is "downward", the direction of air from the adjacent units is adjusted to be more downward.
  • the air volume of the adjacent units may be uniformly set to, for example, "strong” or may be determined according to the setting of the operating units 130k and 1301.
  • the air volume of the adjacent units may be set to “strong”
  • the air volume of the adjacent units may be set to "weak”
  • this step S105 it is possible to inhibit air conditioned by the operating units 130k and 1301 in the space N where the user requires air conditioning from diffusing from the space N where the user requires air conditioning.
  • the indoor units 130a to 130e, 130i, 130j, 130n, 130o, 130s, 130t, and 130u to 130y that are neither the operating units 130k and 1301 specified by the operating-unit specifying unit 111 nor the adjacent units 130f to 130h, 130m, and 130p to 130r specified by the adjacent-unit specifying unit 112 are held in the OFF state unless the operation in the air blowing mode is selected by the user.
  • Figure 14 is a view showing the setting of the indoor space B during execution of step S104 and step S 105 in the above described specific example.
  • each of the indoor units 130a, 130b, ..., and 130y in the indoor space B will be controlled according to the settings of the operation mode, set temperature, air volume, direction of air, and the like that were input by the user via the remote controllers 40a, 40b, ..., and 40y.
  • the indoor units 130f to 130h, 130k to 130m, and 130p to 130r in the boundary side space N1 perform the air blowing operation, and thereby the space N that should be air conditioned will be enveloped by an air curtain.
  • the boundary side space N1 is a space that defines the boundary between the space N and the space outside thereof (cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty) in the space N side. Accordingly, the conditioned air is inhibited from diffusing from the space N that should be air conditioned, and thereby it is possible to achieve energy conservation.
  • the adjacent units 130f to 130h, 130m, and 130p to 130r are controlled to perform the thermo-off operation; however, they may be controlled to perform the mild cooling operation or the mild heating operation.
  • the mild cooling operation or the mild heating operation of the adjacent units 130f to 130h, 130m, and 130p to 130r will aid the cooling operation or the heating operation in the space N where the user requires air conditioning.
  • a location identifying system capable of automatically detecting the location of a living body such as a person or an animal present in the indoor space B may be introduced.
  • a location identifying system infrared sensors may be installed at several appropriate locations in the indoor space B.
  • a living body in the indoor space B may carry a transmitter, and receivers capable of detecting a signal from the transmitter may be installed in several appropriate locations in the indoor space B.
  • a device such as an IC tag may be used. If a transmitter and receivers are introduced as the location identifying system, the control unit 10 and the like will identify the location of the transmitter by triangulation or other methods based on a signal from the transmitter that was received by the receivers.
  • an entering/leaving management system introduced as the location identifying system into the indoor space B, or a personal computer used by an employee working in the indoor space B which allows manual input of information indicating the presence or absence of people may be used by interlocking with the air conditioning control device 101.
  • step S102 in Figure 13 information regarding the location of a living body identified by such a location identifying system is sent to the control unit 10 of the air conditioning control device 101. Then, in step S102 in Figure 13 , the operating-unit specifying unit 111 specifies the operating units and adjacent units based on the information regarding the location of the living body identified by the location identifying system in addition to or instead of the operation commands sent from the remote controllers 40a, 40b, ..., and 40y.
  • the process in Figure 13 may be executed in the case where the information regarding the location of the living body is sent to the control unit 10 from the location identifying system in addition to or instead of the case where the operation commands input by the user are sent to the control unit 10 from the remote controllers 40a, 40b, ..., and 40y.
  • opening and closing of the flaps 31a to 31d of each of the indoor units 130a, 130b, ..., and 130y may be independently controllable for each of the flaps 31a to 31d.
  • thermo-off operation of the adjacent units 130f to 130h, 130m, and 130p to 130r in step S 105 in Figure 13 may be controlled as described below.
  • the adjacent-unit control unit 114 causes air to be blown out in different directions from the four flaps 31a to 31d of each of the adjacent units 130f to 130h, 130m, and 130p to 130r. Consequently, for example, air is blown out downward from each flap farther from the inner space N2 than the suction port 33 (i.e., flaps closer to the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces), and air is blown out obliquely downward from each flap closer to the inner space N2 than the suction port 33 (i.e., flaps farther from the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces) (see Figure 15(a) ).
  • air is blown out only from the flap farther from the inner space N2 than the suction port 33 (i.e., flaps closer to the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces) (see Figure 15(b) ).
  • air is not blown out from each flap closer to the inner space N2 than the suction port 33 (i.e., flaps farther from the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces).
  • the arrangement information 121 stored in the memory unit 20 has information indicating the position of each of the flaps 31a to 31d of each of the indoor units 130a, 130b, ..., and 130y. Accordingly, the adjacent-unit control unit 114 can refer to the arrangement information 121 and specify the flap closer to or farther from the inner space N2 than the suction port 33.
  • the settings of the operation mode, set temperature, air volume, direction of air, and the like of the adjacent units 130f to 130h, 130m, and 130p to 130r may be adjusted according to an output value of a suction temperature sensor attached near the suction port 33 of each of the adjacent units 130f to 130h, 130m, and 130p to 130r.
  • the adjacent-unit control unit 114 may perform control such that the direction of air blowing from each of the adjacent units 130f to 130h, 130m, and 130p to 130r is directed toward a living body such as a person or an animal present in the boundary side space N1 (see Figure 16 ).
  • a living body such as a person or an animal present in the boundary side space N1 (see Figure 16 ).
  • opening and closing of each of the flaps 31a to 31d of each of the indoor units 130a, 130b, ..., and 130y are independently controllable, as in the alternative embodiment (3).
  • a location identifying system capable of automatically detecting the location of a living body present in the indoor space B may be connected to the air conditioning control device 101.
  • Such a location identifying system includes the examples described in the alternative embodiment (2).
  • Information regarding the location of a living body identified by such a location identifying system is sent to the control unit 10 of the air conditioning control device 101.
  • the adjacent-unit control unit 114 controls the direction of air from each of the adjacent units 130f to 130h, 130m, and 130p to 130r based on the information regarding the location of the living body identified by the location identifying system.
  • each of the adjacent units 130f to 130h, 130m, and 130p to 130r is caused to blow out air toward a living body present in the vicinity of each of the adjacent units 130f to 130h, 130m, and 130p to 130r, respectively.
  • the adjacent units 130f to 130h, 130m, and 130p to 130r play a role as a fan.
  • an air flow in the boundary side space N1 is facilitated, and a difference between the sensible temperature as felt by a living body in the boundary side space N1 and the sensible temperature as felt by a living body in the inner space N2 is reduced, and the above described problem is eliminated.
  • a temperature difference between the boundary side space N1 where the adjacent units 130f to 130h, 130m, and 130p to 130r are installed and the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces does not become too large, thus inhibiting cold air from diffusing from the space N.
  • a difference between the sensible temperature as felt by a living body in the boundary side space N1 (cell spaces Tf to Th, Tm, and Tp to Tr) and the sensible temperature as felt by a living body in the inner space N2 (cell spaces Tk and Tl) may be converted into an index and measured, and the direction of air from each of the adjacent units 130f to 130h, 130m, and 130p to 130r may be controlled by the adjacent-unit control unit 114 such that the difference with respect to the sensible temperature is equal to or lower than a predetermined value.
  • control may be performed so as to increase the performance levels of the operating units 130k and 1301 or the performance levels of the adjacent units 130f to 130h, 130m, and 130p to 130r, or the performance levels of both these operating units and adjacent units.
  • the difference with respect to the sensible temperature can be converted into an index based on an output value of the suction temperature sensor attached near the suction port 33 of each of the adjacent units 130f to 130h, 130m, and 130p to 130r and each of the operating units 130k and 1301 as well as information regarding preference of the user for the draft feeling and the like.
  • comfort in the boundary side space N1 may be converted into an index and measured.
  • comfort can be converted into an index based on an output value of the suction temperature sensor attached near the suction port 33 of each of the adjacent units 130f to 130h, 130m, and 130p to 130r as well as information regarding preference of the user for the draft feeling and the like.
  • the adjacent-unit control unit 114 may perform control such that the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r becomes greater than a set value that the user selected for each of the adjacent units 130f to 130h, 130m, and 130p to 130r. Or, control may be performed such that the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r becomes greater than a set value selected for each of the operating units 130k and 1301 by a predetermined level. Or, control may be performed such that the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r is set to a maximum air volume.
  • the adjacent units 130f to 130h, 130m, and 130p to 130r do not perform the operation as selected by the user, there is a risk that the temperature in the boundary side space N1 for which the adjacent units 130f to 130h, 130m, and 130p to 130r are arranged may become high, thus impairing comfort. Therefore, in this alternative embodiment, when the operating units 130k and 1301 perform the cooling operation, the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r is increased.
  • a temperature difference between the boundary side space N1 where the adjacent units 130f to 130h, 130m, and 130p to 130r are installed and the cell spaces Ta to Te, Ti, Tj, Tn, To, Ts, Tt, and Tu to Ty that are not the air conditioning target spaces does not become too large, thus inhibiting cold air from diffusing from the space N.
  • a difference between the sensible temperature as felt by a living body in the boundary side space N1 (cell spaces Tf to Th, Tm, and Tp to Tr) and the sensible temperature as felt by a living body in the inner space N2 (cell spaces Tk and Tl) may be converted into an index and measured, and the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r may be controlled by the adjacent-unit control unit 114 such that the difference with respect to the sensible temperature is equal to or lower than a predetermined value.
  • control may be performed so as to increase the performance levels of the operating units 130k and 1301 or the performance levels of the adjacent units 130f to 130h, 130m, and 130p to 130r, or the performance levels of both these operating units and adjacent units.
  • the difference with respect to the sensible temperature can be converted into an index based on an output value of the suction temperature sensor attached near the suction port 33 of each of the adjacent units 130f to 130h, 130m, and 130p to 130r and each of the operating units 130k and 1301 as well as information regarding preference of the user for the draft feeling and the like.
  • comfort in the boundary side space N1 may be converted into an index and measured.
  • comfort can be converted into an index based on an output value of the suction temperature sensor attached near the suction port 33 of each of the adjacent units 130f to 130h, 130m, and 130p to 130r as well as information regarding preference of the user for the draft feeling and the like.
  • the operating-unit control unit 113 may perform control such that the direction of air blowing from each of the operating units 130k and 1301 is directed toward the adjacent units 130f to 130h, 130m, and 130p to 130r (see Figure 17 ).
  • the direction of air from each of the operating units 130k and 1301 is substantially horizontal, and an air flow is formed near the ceiling of the space N which moves along the ceiling in a hovering manner. Accordingly, cold air that tends to easily accumulate on the lower side can easily accumulate near the ceiling of the space N, and cold air blown out from the operating units 130k and 1301 is prevented from immediately diffusing toward around the floor of the space N. Instead, cold air accumulated near the ceiling will gradually diffuse toward around the floor. Therefore, in this alternative embodiment, the entire space N can be uniformly cooled.
  • opening and closing of each of the flaps 31a to 31d of each of the indoor units 130a, 130b, ..., and 130y is independently controllable, and control is performed such that an air flow from each of the flaps 31a to 31d of each of the operating units 130k and 1301 is prevented from colliding with each other.
  • an air flow that moves along the ceiling of the space N in a hovering manner easily flows from the operating units 130k and 1301 toward the adjacent units 130f to 130h, 130m, and 130p to 130r.
  • cold air from the operating units 130k and 1301 is merged with an air flow flowing downward or obliquely downward from the adjacent units 130f to 130h, 130m, and 130p to 130r, thus forming a circulating air flow in the space N. Accordingly, it is possible to uniformly cool the entire space N.
  • each of the adjacent units 130f to 130h, 130m, and 130p to 130r is controlled by the adjacent-unit control unit 114 as described below. Specifically, among each of the flaps 31a to 31d of each of the adjacent units 130f to 130h, 130m, and 130p to 130r, the adjacent-unit control unit 114 stops air blowing from the flap on the side close to the operating units 130k and 1301 and causes air to be blown out only from the flap farther from the inner space N2 than the suction port 33.
  • each of the adjacent units 130f to 130h, 130m, and 130p to 130r can easily suck cold air from each of the operating units 130k and 1301 via the suction port 33, and the cold air is blown out from the adjacent units 130f to 130h, 130m, and 130p to 130r. Thereby, cold air generated in the operating units 130k and 1301 reaches throughout the space N.
  • the adjacent-unit control unit 114 may control the direction of air from and the air volume of each of the adjacent units 130f to 130h, 130m, and 130p to 130r based on a difference between the sensible temperature as felt by a living body in the boundary side space N1 and the sensible temperature as felt by a living body in the inner space N2 and/or the comfort in the boundary side space N1. Consequently, it is possible to form a circulating air flow in the space N while directing air blown from the adjacent units 130f to 130h, 130m, and 130p to 130r toward the living body in the boundary side space N1.
  • the air conditioning control device 101 may be a central remote controller for the air conditioner that includes the indoor units 130a, 130b, ..., and 130y. Consequently, the user can input an operation command to each of the indoor units 130a, 130b, ..., and 130y via an input unit (not shown) of the air conditioning control device 101. Note that an operation command input via the input unit (not shown) of the air conditioning control device 101 is processed in the same manner as an operation command input via the remote controllers 40a, 40b, ..., and 40y. (9)
  • the present invention has effects that can improve the air conditioning operational efficiency in the space of a portion of a single space having an indoor unit group installed when air conditioning is needed only in the space of the portion, and can facilitate energy conservation.
  • the present invention is useful as an air conditioning control device and an air conditioning control method in which the operation of the indoor unit group constituted by a plurality of indoor units of an air conditioner installed in the single space is collectively controlled.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
EP07791232.7A 2006-07-31 2007-07-24 Air conditioning control device and air conditioning control method Active EP2048450B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006208952 2006-07-31
JP2007044183A JP4165604B2 (ja) 2006-07-31 2007-02-23 空調制御装置および空調制御方法
PCT/JP2007/064507 WO2008015932A1 (fr) 2006-07-31 2007-07-24 Dispositif et procédé de commande de conditionnement d'air

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EP2048450A1 EP2048450A1 (en) 2009-04-15
EP2048450A4 EP2048450A4 (en) 2012-10-31
EP2048450B1 true EP2048450B1 (en) 2017-10-18

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EP (1) EP2048450B1 (zh)
JP (1) JP4165604B2 (zh)
CN (1) CN101495817B (zh)
WO (1) WO2008015932A1 (zh)

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Publication number Publication date
EP2048450A4 (en) 2012-10-31
JP2008057951A (ja) 2008-03-13
WO2008015932A1 (fr) 2008-02-07
JP4165604B2 (ja) 2008-10-15
US20100010680A1 (en) 2010-01-14
EP2048450A1 (en) 2009-04-15
US8229599B2 (en) 2012-07-24
CN101495817B (zh) 2011-09-28
CN101495817A (zh) 2009-07-29

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